Fkanklin davis



@with tetra gamut firten IMPROVED MACHINE POR SGOUEING LEATHER. Y

SPECIFICATION- T0 ALL WHOM IT MAY COlTCIlltll:

Beit known that I, FRANKLIN DAWS, of Lawrence, in the county of Douglas, and Stateof Kansas, have invented a new and improved Machine for scouring Leather; and I do hereby declare that the following is a. full, i

clear, and exact description thereof.

This invention consists 1n constructing a machine by which the tedious andexpensive process of scouring leather shall enable me to accomplish the operation by the use of power, either water, steam, or horse power, in

a much more rapid, cheap, and perfect manner than it has been done hitherto; and thje machine consists principally of a frame, a cylinder, apron, and water reservoir. l

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction` and operation, reference being had to the accompanying drawings forming part of this speciiication,` and to the letters of reference marked thereon, in which- Figure 1 represents a side elevation; and

Figure 2, a top or plan view partly sectional.

The s ame letters of reference indicate like parts.

A represents the frame; B, the cylinder; C, 4the apron; and D, the water reservoir- I construct a strong frame of `suitable size, the"back posts of which arc longer and extend up higher than the front pues, for the` purpose of receiving and `supporting the back end of the apron. The sides of thisframe support the cylinder` The apron is formed of two side pieces C', which are connected by a simple loose joint to thelback postsinsuch` a manner as to .allow the front portion to betelevated and depressed at the will of the operator, asf seeh in dotted i lines at e, these back posts being made broad to receive them. Two cross-piecesfE, connect thesesides together.` The under side of tbis'apron, from the front to the back cross-piece, is coveredwith leather. The apron ;i`s

suiciently'wide between the side pieces for the purpose intended, or to admit any side of leather. The cylinder .t

B may be a foot, or more, in diameter, and must be suiiiciently long to allow the apron to rest over it and be pressed upon it, it being about the length of the cross-piece E, or the width of the apronon the inside. It has p l journals at each end, upon which it revolves, and a pulley at one end, by .which it is driven. It is made -tod p revolve rapidly. I have found about three hundred and fty revolutions per lminute to be about right.` ,Tot lmake this a scouring cylinder, rows of scouring stones are inserted lengthwise. I have found four rows to bl? l suicient, but there mary be more or less. They do not stand on a line across thelength of the cylinder, bu

run spirally across, as seen in g.. 2. They are of ,such a width that aboutgtive of `them will reach across'tllie` cylinder, and of a thickness suicient to givethein the required strength to stand the friction to which they are` p subjected. These scouring stones project from the surface or periphery of the cylinder as far as may be desirable. The water reservoir D splaced back and a little above the centre of the cylinder in the drawing, t

but it may be located in` any position where streams of water can he discharged from it on` to the cylinder, and` it may be constructed in any suitable manner. The little pipes a are in connection with this water reservoir."` J is a spring attached to the inside of `the frame at the right hand of the tender, and is so` placed that it will` hold up the apron above thecylinder when it is in motion, but not at work.

The operation is as follows: The cylinder being put in motion, the man in attendance throws one en'd oi'. a

side of leather (g in the drawing) over the Atop of the apron; the end dropping down and hanging fromthe back` l 'cross-piece, is immediately caught by thestones of the revolving cylinder land brought forward towards the l. p tender, as seen in the drawing. The apron now rests upon the cylinder, andthe tendencyofV the cylinder is to draw the side of leather through and drop it at the feet of the tender; buthe holds on to it, and feeds `it through,` while the stones scour it as much as he desires. The side of leather being in contact with the elastic leather bottom of the apron, is thereby adjusted to the face of thcscouring stones, and receives an even dressingin l every part. The water from the reservoir being at the same time discharged k,from the pipesa upon the cylinder, i

assists in the operation. 4 l g l l Having thus described my invention,.what I claim as new, and desire tosecurebyLetters I Eatent, 1s-,

The cylinder B and the apron C, constructed, arranged, and operating-substantially as described` in `coin-` t Q bnationwith the frame A and the water reservoir D,lfor 'the purposes set forth. t

' FRANKLIN DAVIS.A Witnesses: v t

WM. M. PRATT, A. H. Eooru. 

